← × 5 and × 50: halve first lesson New set →

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 941 · 40 questions
TalentJR

The fast method (Halve first): Halve the number. × 5: multiply the half by 10. × 50: multiply the half by 100. Odd number? Its half ends in .5 — 43 → 21.5 — and × 10 moves the point: 215.

NameDateTime takenScore ___ / 40
  1. 1.28 × 50 =
  2. 2.69 × 50 =
  3. 3.73 × 50 =
  4. 4.21 × 50 =
  5. 5.90 × 5 =
  6. 6.34 × 50 =
  7. 7.20 × 5 =
  8. 8.53 × 50 =
  9. 9.79 × 5 =
  10. 10.15 × 50 =
  11. 11.32 × 50 =
  12. 12.16 × 5 =
  13. 13.58 × 50 =
  14. 14.80 × 50 =
  15. 15.18 × 5 =
  16. 16.40 × 5 =
  17. 17.40 × 50 =
  18. 18.75 × 50 =
  19. 19.26 × 5 =
  20. 20.15 × 50 =
  21. 21.21 × 5 =
  22. 22.18 × 50 =
  23. 23.32 × 50 =
  24. 24.68 × 50 =
  25. 25.22 × 50 =
  26. 26.14 × 5 =
  27. 27.29 × 5 =
  28. 28.88 × 5 =
  29. 29.31 × 50 =
  30. 30.12 × 50 =
  31. 31.21 × 5 =
  32. 32.91 × 5 =
  33. 33.89 × 50 =
  34. 34.87 × 5 =
  35. 35.20 × 5 =
  36. 36.54 × 50 =
  37. 37.41 × 50 =
  38. 38.60 × 5 =
  39. 39.49 × 50 =
  40. 40.39 × 50 =

Answer key

  1. 1400
  2. 3450
  3. 3650
  4. 1050
  5. 450
  6. 1700
  7. 100
  8. 2650
  9. 395
  10. 750
  11. 1600
  12. 80
  13. 2900
  14. 4000
  15. 90
  16. 200
  17. 2000
  18. 3750
  19. 130
  20. 750
  21. 105
  22. 900
  23. 1600
  24. 3400
  25. 1100
  26. 70
  27. 145
  28. 440
  29. 1550
  30. 600
  31. 105
  32. 455
  33. 4450
  34. 435
  35. 100
  36. 2700
  37. 2050
  38. 300
  39. 2450
  40. 1950

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths